SLC-500 Micro ModbusThis second program is based on the first, but uses the Modbus Master protocol available in the latest release of the MicroLogix 1200, as well as a 1761-Net-AIC.

The biggest obstacle in getting this configuration to work was trying to find the polarity of the comm lines (i.e. does + comm on the AIC go to A or B comm on the drive?) as well as realizing all the modbus addresses are offset by 1 (which even Rockwell Drives Div. missed in Rev 1 of the subsequently release tech note).

Since this file was published, Rockwell has release (and fixed) a tech note, and also has an excellent 2004 HOT LAB.

Requirements:

  • RSLogix 500 Version: 6.1
  • Additional Requirements: Micro1200 & PowerFlex 4 /40
  • File Size: 60 kb
  • Uploaded on: 02/09/04
  • Entered By: Shawn Michael Tierney

Download Link:

Sincerely,

Shawn Tierney
Automation Instructor and Blogger
If you enjoyed my article, you may like my courses at TheAutomationSchool.com


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Note: This article was previously posted on the author's original websites, www.ShawnMichael.com and www.ShawnMTierney.com

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Shawn Tierney
Shawn began sharing automation news and know-how online in 1996 when he launched his first BBS. Then in 1999 he moved to the internet launching ShawnMichael.com, which he later renamed ShawnMTierney.com. In 2013 he moved his automation efforts to a new website, TheAutomationBlog.com, which has since become the most popular independent industrial automation blog on the web. Today Shawn works full time teaching online courses on Programmable Controllers, HMI, and SCADA on his training website, TheAutomationSchool.com.